Take a look at three points, 1) the upper left vertical of you in TRUST in NW direction 2) the NW corner D in GOD has a notch 3) the N of IN has what looks like a skinny smaller N on top of a larger thicker one.
Those are the first places I look on the 1972P, D, S coins. If you see these indicators, it is MDD. The Master hubbing process caused this, and was thereby passed down to multiple working dies, hence/all mints have this error